Ultrasonic detection device
    2.
    发明授权

    公开(公告)号:US12111427B2

    公开(公告)日:2024-10-08

    申请号:US17406119

    申请日:2021-08-19

    IPC分类号: G01S7/52 B06B1/02 G01S15/89

    摘要: An ultrasonic detection device, including a substrate, sensing elements, a first test element, a first dummy element, at least one first common signal line, sensing signal lines, and at least one test signal line, is provided. The sensing elements, the first test element, and the first dummy element are located on the substrate. The first test element is located between the sensing elements and the first dummy element. Each of the sensing elements, the first test element, and the first dummy element includes an array of capacitive microelectromechanical ultrasonic transducers. The first common signal line is electrically connected to the sensing elements and the first test element. The sensing signal lines are electrically connected to the sensing elements. The test signal line is electrically connected to the first test element.

    VIBRATION DEVICE
    4.
    发明公开
    VIBRATION DEVICE 审中-公开

    公开(公告)号:US20240326092A1

    公开(公告)日:2024-10-03

    申请号:US18621849

    申请日:2024-03-29

    申请人: TDK Corporation

    IPC分类号: B06B1/06 B06B1/02

    CPC分类号: B06B1/0648 B06B1/0207

    摘要: Disclosed herein is a vibration device that includes: a coil; a drive circuit generating, based on induction electromotive force of the coil, a drive signal having a predetermined frequency; a piezoelectric element supplied with the drive signal; and a metal plate having a recess. The piezoelectric element is accommodated in the recess of the metal plate and stuck to a bottom surface of the recess through an adhesive.

    Transmitter charge sharing in a differential ultrasonic transducer

    公开(公告)号:US12097533B2

    公开(公告)日:2024-09-24

    申请号:US17308816

    申请日:2021-05-05

    申请人: InvenSense, Inc.

    IPC分类号: B06B1/06 B06B1/02

    CPC分类号: B06B1/0207 B06B1/0603

    摘要: An ultrasonic transducer device comprises a controller and a differential piezoelectric micromachined ultrasonic transducer with a membrane later, a bottom electrode layer, a piezoelectric layer, and a top electrode layer comprising a first electrode with a positive voltage to displacement coefficient and a second electrode with a negative voltage to displacement coefficient. During a first period, the controller electrically decouples a first output of a first driver from the first electrode, electrically decouples a second output of a second driver from the second electrode, and electrically couples the first and second electrodes to equalize charge between them. During a second period, the controller electrically decouples the first and second electrodes, electrically couples the first output with the first electrode, and electrically couples the second output with the second electrode; where waveforms on the first and second outputs during the second time period are out of phase with one another.

    METHOD FOR CONTROLLING A THERAPEUTIC ULTRASONIC INTERVENTIONAL SYSTEM

    公开(公告)号:US20240299050A1

    公开(公告)日:2024-09-12

    申请号:US18278588

    申请日:2022-02-22

    申请人: WaveClear, Inc.

    发明人: Jonathan Masters

    摘要: A method for controlling a system, comprising repeatedly monitoring at least one operational characteristic of a system that includes an ultrasonic transducer, wherein the ultrasonic transducer is powered by an ultrasonic generator and is configured to drive a device at predetermined levels of vibration amplitude, and wherein the ultrasonic generator includes a controller configured to monitor operational parameters of the system; detecting a change in an operational characteristic based on a comparison of the monitored characteristic against a predetermined threshold for that characteristic; inferring a system-use criteria based on the detected change in the operational characteristic; and adapting system control by using the controller to alter the operational characteristic based on the inferred use criteria.

    Ultrasonic sensor, ultrasonic image generating apparatus, and ultrasonic diagnostic apparatus

    公开(公告)号:US12085645B2

    公开(公告)日:2024-09-10

    申请号:US17739169

    申请日:2022-05-09

    申请人: Hiroaki Kyogoku

    发明人: Hiroaki Kyogoku

    摘要: An ultrasonic sensor includes an ultrasonic transducer; a first voltage output circuit to output a transmission voltage signal that oscillates between a first high voltage and a first low voltage, supplied to a first terminal of the ultrasonic transducer; a reception circuit to detect a voltage signal generated at a second terminal of the ultrasonic transducer; and the second voltage output circuit to output a second high voltage smaller than the first high voltage. The first voltage output circuit includes a first switching unit to perform switching between supplying the transmission voltage signal in ultrasonic transmission; and fixing a potential of the first terminal in ultrasonic reception. The second voltage output circuit includes a second switching unit that performs switching between supplying the second high voltage to the second terminal in ultrasonic transmission; and electrically separating the second voltage output circuit from the second terminal in ultrasonic reception.